From 0650653658c35cab4675ce76b2328306c934ffe0 Mon Sep 17 00:00:00 2001
From: Rusty Russell <rusty@rustcorp.com.au>
Date: Thu, 21 Dec 2017 21:40:21 +1030
Subject: [PATCH] bitcoind: delete chaintips code.

We don't need it any more, with the simpler topology approach.

Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
---
 lightningd/bitcoind.c | 71 -------------------------------------------
 lightningd/bitcoind.h | 14 ---------
 2 files changed, 85 deletions(-)

diff --git a/lightningd/bitcoind.c b/lightningd/bitcoind.c
index 0bd59127a..9b1881267 100644
--- a/lightningd/bitcoind.c
+++ b/lightningd/bitcoind.c
@@ -355,77 +355,6 @@ void bitcoind_sendrawtx_(struct bitcoind *bitcoind,
 			  "sendrawtransaction", hextx, NULL);
 }
 
-static void process_chaintips(struct bitcoin_cli *bcli)
-{
-	const jsmntok_t *tokens, *t, *end;
-	bool valid;
-	size_t i;
-	struct bitcoin_blkid tip;
-	void (*cb)(struct bitcoind *bitcoind,
-		   struct bitcoin_blkid *tipid,
-		   void *arg) = bcli->cb;
-
-	tokens = json_parse_input(bcli->output, bcli->output_bytes, &valid);
-	if (!tokens)
-		fatal("%s: %s response",
-		      bcli_args(bcli),
-		      valid ? "partial" : "invalid");
-
-	if (tokens[0].type != JSMN_ARRAY)
-		fatal("%s: gave non-array (%.*s)?",
-		      bcli_args(bcli),
-		      (int)bcli->output_bytes, bcli->output);
-
-	valid = false;
-	end = json_next(tokens);
-	for (i = 0, t = tokens + 1; t < end; t = json_next(t), i++) {
-		const jsmntok_t *status = json_get_member(bcli->output, t, "status");
-		const jsmntok_t *hash = json_get_member(bcli->output, t, "hash");
-
-		if (!status || !hash) {
-			log_broken(bcli->bitcoind->log,
-				   "%s: No status & hash: %.*s",
-				    bcli_args(bcli),
-				    (int)bcli->output_bytes, bcli->output);
-			continue;
-		}
-
-		if (!json_tok_streq(bcli->output, status, "active")) {
-			/* Ignoring this chaintip since it's not active */
-			continue;
-		}
-		if (valid) {
-			log_unusual(bcli->bitcoind->log,
-				    "%s: Two active chaintips? %.*s",
-				    bcli_args(bcli),
-				    (int)bcli->output_bytes, bcli->output);
-			continue;
-		}
-		if (!bitcoin_blkid_from_hex(bcli->output + hash->start,
-					    hash->end - hash->start,
-					    &tip))
-			fatal("%s: gave bad hash for %zu'th tip (%.*s)?",
-			      bcli_args(bcli), i,
-			      (int)bcli->output_bytes, bcli->output);
-		valid = true;
-	}
-	if (!valid)
-		fatal("%s: gave no active chaintips (%.*s)?",
-		      bcli_args(bcli), (int)bcli->output_bytes, bcli->output);
-
-	cb(bcli->bitcoind, &tip, bcli->cb_arg);
-}
-
-void bitcoind_get_chaintip_(struct bitcoind *bitcoind,
-			    void (*cb)(struct bitcoind *bitcoind,
-				       const struct bitcoin_blkid *tipid,
-				       void *arg),
-			    void *arg)
-{
-	start_bitcoin_cli(bitcoind, NULL, process_chaintips, false, cb, arg,
-			  "getchaintips", NULL);
-}
-
 static void process_rawblock(struct bitcoin_cli *bcli)
 {
 	struct bitcoin_block *blk;
diff --git a/lightningd/bitcoind.h b/lightningd/bitcoind.h
index fe48ea40c..675d0c995 100644
--- a/lightningd/bitcoind.h
+++ b/lightningd/bitcoind.h
@@ -84,20 +84,6 @@ void bitcoind_sendrawtx_(struct bitcoind *bitcoind,
 						int, const char *),	\
 			    (arg))
 
-void bitcoind_get_chaintip_(struct bitcoind *bitcoind,
-			    void (*cb)(struct bitcoind *bitcoind,
-				       const struct bitcoin_blkid *tipid,
-				       void *arg),
-			    void *arg);
-
-#define bitcoind_get_chaintip(bitcoind_, cb, arg)			\
-	bitcoind_get_chaintip_((bitcoind_),				\
-			       typesafe_cb_preargs(void, void *,	\
-						   (cb), (arg),		\
-						   struct bitcoind *,	\
-						   const struct bitcoin_blkid *), \
-			       (arg))
-
 void bitcoind_getblockcount_(struct bitcoind *bitcoind,
 			     void (*cb)(struct bitcoind *bitcoind,
 					u32 blockcount,